CENTRAL AND LOGARITHMIC CENTRAL IMAGE CHORD TRANSFORMATIONS FOR INVARIANT OBJECT RECOGNITION

Pattern descriptors invariant to rotation, scaling, and translation represents an important direction in the elaboration of real time object recognition systems. In this article, new kinds based on chord transformation are presented. There described methods image presentation - Central Logarithmic Image Chord Transformations (CICT LCICT). It is shown that CICToperation makes it possible achieve invariance rotation. case implementation LCICT transformation, changes rotation scale achieved. The possibilities implementing CICTand LCICToperations discussed. algorithms these operations for contour images integrated CICT considered. A generalized operation a full (halftone) defined. structures coherent optical processors implement basic integral transformations